ID   1.3.4.1
DE   fumarate reductase (CoM/CoB).
AN   thiol:fumarate reductase.
CA   coenzyme B + coenzyme M + fumarate = coenzyme M-coenzyme B
CA   heterodisulfide + succinate.
CC   -!- The enzyme, isolated from the archaeon Methanobacterium
CC       thermoautotrophicum, is very oxygen sensitive.
CC   -!- It cannot use reduced flavins, reduced coenzyme F420, or NAD(P)H as
CC       an electron donor.
CC   -!- Distinct from EC 1.3.1.6, EC 1.3.5.1 and EC 1.3.5.4.
CC   -!- Formerly EC 1.3.98.2.
DR   D9PU00, TFRA_METTM ;  D9PUX5, TFRB_METTM ;
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